MCCB for high-fault panels
The Siemens SENTRON 3VA2110-6HN42-0AA0 is a 4-pole molded case circuit breaker rated for 100 A continuous current across its full ambient range — no derating needed from 40 °C up to 70 °C, which simplifies panel thermal budgeting in warm enclosures or near other heat sources. Its ETU350 electronic trip unit gives you adjustable long-time (tr 0.5–17 s) and short-time delay (tsd up to 0.4 s), plus selectable N-conductor protection (OFF, 50%, 100%), so you can shape the time-current curve for selective coordination downstream. The interrupting ratings are the headline: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.8 kA at 690 V — that is a high-fault-current MCCB sized for main or feeder duty in industrial switchboards where the available fault current is substantial.
Panel integration and mounting
The 3VA2110-6HN42-0AA0 measures 140 mm wide, 181 mm high, and 86 mm deep — a 4-pole MCCB footprint that fits standard switchboard mounting plates. Front face protection is IP40, so it is suited for enclosed panel installation where tools are needed to access live parts. Rated insulation voltage Ui is 800 V, and the operating temperature range is -25 °C to 70 °C, with storage from -40 °C to 80 °C. Maximum power loss is 10 W, which should be factored into enclosure thermal calculations if the panel is densely populated.